Radio-controlled clock and method for automatically receiving and evaluating any one of plural available time signals
Granted: June 9, 2005
Application Number:
20050122952
Transmitters respectively transmit time signals providing time information in a succession of time frames having constant duration but different encoding parameters and frequencies. A received time signal is evaluated to determine the particular transmitter that transmitted the signal. For example, the frequency, the duration and number of signal pulses representing second markers, the arrangement and sequence of signal pulses, and/or the inversion state of the signal are evaluated to…
Radio-controlled clock and method for acquiring time information from a time signal with reduced evaluation overhead
Granted: June 2, 2005
Application Number:
20050116856
A time signal provides time and/or date information in a succession of time code telegrams that each include successive time frames having at least one data bit each. The time signal is received, decoded and evaluated to acquire the time information, for which only some of the data bits of a respective time code telegram are evaluated. Particularly, only those bits representing necessary time and/or date information are evaluated, while other bits containing other unneeded information…
Electric circuit for decoding a two-phase asynchronous data signal and corresponding decoding method, device for controlling equipment
Granted: June 2, 2005
Application Number:
20050117671
This invention relates to an electronic circuit for decoding an asynchronous two-phase data signal. According to the invention, such an electronic circuit comprises means for generating a decoding clock using a counter powered by an internal clock, and repeating cycles including incrementation of the said counter until detection of a transition in the said data signal, followed by decrementing the said counter down to zero.
Method and circuit arrangement for synchronizing plural oscillators
Granted: May 19, 2005
Application Number:
20050104666
A circuit arrangement includes a first phase locked loop to generate a first oscillator frequency, a second phase locked loop to generate a second oscillator frequency, a reference frequency emitter connected to a reference frequency input of both phase locked loops, and a signal attenuator and optionally a switch connected between a master signal output of the first (master) loop and an input of the second (slave) loop. In a method, a common reference frequency is provided to both…
Method and circuit for producing a control voltage for a VCO
Granted: May 19, 2005
Application Number:
20050104671
The control voltage for a VCO (voltage controlled oscillator) is produced in a phase locked loop which in turn is controlled by a computer (40) including an integrated analog circuit (42). First the oscillator control voltage is set to a predetermined value. Then, voltage varying steps are performed. For performing these steps, the circuit includes a main frequency divider and a reference frequency divider both functioning as counters. The beginnings of the counting of each divider are…
Circuit arrangement for monitoring a voltage
Granted: May 12, 2005
Application Number:
20050099171
A voltage (UE1, UE2). such as a supply voltage, is monitored and controlled to avoid damage to circuit components by maintaining a required voltage level. Dissipation power losses are reduced by switching off a monitoring circuit when monitoring is not required. For this purpose a stepped down voltage is derived from the voltage to be monitored at a tap (N1) of a voltage divider connected between ground potential and the voltage to be monitored. The derived voltage is then evaluated, for…
Method for automatic detection of the data rate in a network, particularly a CAN bus type network, and for configuration to the detected data rate, corresponding device
Granted: May 5, 2005
Application Number:
20050094570
A method for automatic detection of the network data rate and for configuration at the detected data rate by a device connected to the network. This method includes an initialisation phase and an interative processing phase. The initialisation phase includes the following steps: the device is put into listening mode, in which it can receive messages from the network but it cannot send messages on the network; the device is initialised with an initial data rate configuration; a first…
Method of fabricating semiconductor components through implantation and diffusion in a semiconductor substrate
Granted: May 5, 2005
Application Number:
20050095804
A semiconductor element such as a DMOS-transistor is fabricated in a semiconductor substrate. Wells of opposite conductivity are formed by implanting and then thermally diffusing respective well dopants into preferably spaced-apart areas in the substrate. At least one trench and active regions are formed in the substrate. The trench may be a shallow drift zone trench of a DMOS-transistor, and/or a deep isolation trench. The thermal diffusion of the well dopants includes at least one…
Circuit arrangement for recognizing and outputting control signals, integrated circuit including the same, and use thereof
Granted: April 28, 2005
Application Number:
20050088206
An integrated circuit preferably to be connected to a motor vehicle battery is selectively switchable between sleep and normal operating modes. The IC may include a useful control logic circuit, a wake-up circuit evaluating an input signal and responsively outputting a wake-up signal dependent on the input signal, and an input control and supply circuit connected between the wake-up circuit and the control logic circuit. The wake-up circuit includes at least one recognition circuit…
Method for selecting one or several transponders
Granted: April 21, 2005
Application Number:
20050083178
In a method for selecting, by a base station, one or more transponders out of a plurality of transponders, selection steps are performed at least at two selection levels or stages. The base station controls all selection steps at the first and second level. The first selection level includes: each transponder generates a random transponder number, the base station generates numbered time slots, each transponder transmits a marker if and when its random transponder number coincides with a…
DMOS-transistor with lateral dopant gradient in drift region and method of producing the same
Granted: March 24, 2005
Application Number:
20050062102
A DMOS-transistor has a trench bordered by a drift region including two doped wall regions and a doped floor region extending along the walls and the floor of the trench. The laterally extending floor region has a dopant concentration gradient in the lateral direction. For example, the floor region includes at least two differently-doped floor portions successively in the lateral direction. This dopant gradient in the floor region is formed by carrying out at least one dopant…
Method of fabricating a semiconductor component with active regions separated by isolation trenches
Granted: March 24, 2005
Application Number:
20050064678
To form a semiconductor component having active regions separated from one another by trenches as isolation structures, a method involves forming a shallow trench in a semiconductor body, thereafter forming a deep trench within the shallow trench in the semiconductor body, and thereafter completely driving dopant atoms into the semiconductor body to form a well region doped with the dopant. The dopant may be previously introduced by implantation into a surface layer, and then the dopant…
Wireless data transmission between base station and transponder with transmission parameter adjusted based on transponder operating information
Granted: March 10, 2005
Application Number:
20050053024
Data encoded in packets modulated onto a carrier wave is transmitted between a base station and a transponder. Each packet includes a header section that contains at least a reference symbol and that serves for adjusting one or more transmission parameters, and a further section such as a data section. The transponder transmits data back to the base station through modulation and backscattering of the carrier wave. During the transmission of the header section by the base station, the…
Method for selecting one or more transponders
Granted: February 3, 2005
Application Number:
20050024186
One or more transponders are selected by a base station out of a plurality of transponders. For this purpose an identification bit sequence (IB) that is or includes a random number bit sequence (ZB) is made available in the respective transponder and the base station transmits in a bit-by-bit fashion a selection bit sequence (AB) to the transponders. These sequences (IB or ZB) and (AB) are compared bit-by-bit in the respective transponder. The comparing is performed by way of a…
Monolithic integratable circuit arrangement for protection against a transient voltage
Granted: February 3, 2005
Application Number:
20050024801
At least one or more terminals of an integrated circuit, such as a low- or high-side driver stage, are protected against transient or over-voltages by two pairs of diodes. A first pair of diodes includes a regular diode (D1 or D1?) and a Zener-diode (ZD1 or ZD1?). A second pair of diodes also includes a regular diode (D2 or D3) and a Zener-diode (ZD2 or ZD3). These diode pairs are looped into the respective circuit and cooperate with an n-channel MOSFET or a p-channel MOSFET to provide…
Transmitting and receiving arrangement with at least two pairs of respectively one transmitting power amplifier and one low noise input amplifier
Granted: February 3, 2005
Application Number:
20050026576
A transmitting and receiving arrangement for operation in any selected one of plural frequency ranges includes at least one transmitting power amplifier and at least one low noise input amplifier allocated respectively to each frequency range. The arrangement includes plural chips, that each include at least one input amplifier and at least one transmitting amplifier incorporated therein, e.g. in an integrated circuit. The input amplifier and the transmitting amplifier allocated to a…
Wireless data transmission between base station and transponder with encoding/decoding parameter adjusted dependent on header symbol duration
Granted: January 27, 2005
Application Number:
20050018639
Data encoded in packets modulated onto a carrier wave is transmitted between a base station and a transponder. Each packet includes a header section containing at least a reference symbol, and a further section such as a data section. In the transponder, the time duration of the reference symbol is determined, and a parameter is adjusted dependent on the determined duration. The parameter determines at least a property, such as the time resolution, of the encoding and/or decoding…
Integrated circuit for a transponder
Granted: December 9, 2004
Application Number:
20040245344
An integrated circuit is combined with a transponder to function either as a voltage or power supply for the transponder by extracting energy out of an electromagnetic field transmitted by a base station or as a detector in the transponder to act as a remote sensor. For this purpose the integrated circuit comprises diode rectifiers. Each of the diode rectifiers has a first and a second service terminal and a reference terminal. In order to reduce a parasitic impedance between the first…
Integrated circuit that can be externally tested through a normal signal output pin
Granted: December 2, 2004
Application Number:
20040239363
An integrated circuit can be tested externally at its normal signal output pin(s) without requiring additional testing output pins or test measuring pads. The integrated circuit includes a circuit unit that generates a normal output signal provided to the signal output pin in a normal operating mode and generates a test signal in a testing mode, a switching element that selectively does or does not connect the test signal from the circuit unit to the signal output pin, and a control unit…
Integrated circuit delivering logic levels at a voltage independent from the mains voltage, with no attached regulator for the power section, and corresponding communication module
Granted: December 2, 2004
Application Number:
20040239406
The invention concerns an integrated circuit comprising means of delivering, on at least one output, a predetermined output voltage representative of a logic level, means of distributing a mains voltage and means of generating an internal voltage reference lower than the mains voltage, comprising means of connecting the mains voltage to the output and means of limiting and/or detecting the voltage at the output at the predetermined output voltage value, taking into account the reference…
